A Wide-Area Dynamic Damping Controller Based on Robust &lt;italic&gt;H&lt;/italic&gt;∞ Control for Wide-Area Power Systems With Random Delay and Packet Dropout

Li, Meng; Chen, Yong

doi:10.1109/tpwrs.2017.2782792

Cited by 63 publications

(28 citation statements)

References 31 publications

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“…Studies such as [4] have analysed damping performance when using signals such as voltage angle difference that can easily be computed using data from multiple Phasor Measurement Units (PMUs). Similar studies using off-line, simulation-based studies that analyze the use of remote/PMU-based signals in damping loops can be traced to the 90's [27] until recently [26], and have largely focused on control design aspects [26], analysis of communication impact and impairment [28], [30], signal selection [29], etc. Nevertheless, very little research has addressed the actual implementation of such control systems in practice other than field testing, with notable exceptions [31] that focus on gain scheduling and model identification approaches.…”

Section: A Literature Review 1) Feasibility and Design Studiesmentioning

confidence: 99%

Experimental Testing of a Real-Time Implementation of a PMU-Based Wide-Area Damping Control System

Rebello

Vanfretti

Almas³

2020

IEEE Access

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The modern power grid is being used under operating conditions of increasing stress, giving rise to grid stability issues. One of these stability issues is the phenomenon of inter-area oscillations. Simulations have demonstrated the advantages of Wide-area Measurement Signals (WAMS)-based Oscillation Damping Controls in achieving improved electromechanical mode damping compared to traditional, local signal-based Power System Stabilizers (PSS). This work takes an existing Phasor-based oscillation damping (POD) algorithm and uses it to implement a proof-of-concept, wide-area, real-time controller on National Instruments hardware. The developed prototype is tested in a real-time Hardware-in-theloop setup (RT-HIL) using OPAL-RT's eMEGASIM real-time simulation platform and synchrophasor data from actual Phasor Measurement Units (PMUs). The prototype and experiments provide insight into the feasibility and real-world limitations of wide-area controls. Further, it is demonstrated how the proposed control architecture has applications independent of the controlled power system device. Challenges faced, the solutions implemented together with the present prototype's limitations are also discussed.

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Section: A Literature Review 1) Feasibility and Design Studiesmentioning

confidence: 99%

Experimental Testing of a Real-Time Implementation of a PMU-Based Wide-Area Damping Control System

Rebello

Vanfretti

Almas³

2020

IEEE Access

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“…Controls based on local measurements can damp certain modes, but they lack sufficient observability to properly damp inter-area oscillations [20]- [22]. On the other hand, the increasing number of phasor measurement units (PMUs) in power systems and the advances in wide-area measurement systems have enabled to implement control strategies using remote measurements in nearly real time [22]- [24]. Remote measurements transmit information related to the overall network dynamics and have a much higher observability of inter-area modes.…”

Section: Introductionmentioning

confidence: 99%

Improving Small-Signal Stability of Power Systems With Significant Converter-Interfaced Generation

Mauricio

León

2020

IEEE Trans. Power Syst.

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This work presents a hierarchical control strategy to improve the stability of electrical networks with significant converter-interfaced generation (CIG). Due to the lack of inertia of CIG systems, these networks can undergo a high rate of change of frequency, compromising the frequency stability. In a first level control, a local controller based on the virtual synchronous generator (VSG) concept is used to emulate inertia and provide short-term frequency regulation. However, the inclusion of significant VSG units can have a negative impact on the damping of inter-area oscillations. Therefore, in a second level control, a centralized controller is proposed to damp these low-frequency electromechanical oscillations affected by VSGs. Several practical issues such as the identification of a system model for the control design, the compensation of communication delays, and the discrete-time implementation of the controller are particularly analyzed. The introduced supplementary controls allow increasing the penetration of renewable energy sources without jeopardizing the frequency and small-signal stability. Eigenvalue analysis and nonlinear hybrid simulations combining DIgSILENT and Python are performed to validate the proposed control strategy.

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“…5 PSS is a very effective controller, it is widely employed to improve the damping of LFOs by bringing in the additional signals into the excitation controllers of the generators. 6 Since the ease of its online tuning parameters, such as structure and reliability, PSS with lead–lag control structure is still prior considered when implemented in real power systems. LFOs can be sufficiently damped by the appropriate selection of conventional lead–lag controller parameters.…”

Section: Introductionmentioning

confidence: 99%

Designing of power system stabilizer based on neural-like P systems

Chen

2019

Proceedings of the Institution of Mechanical Engineers, Part I:

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Power system stabilizers play an important role in reducing the low-frequency oscillation. In this article, the problem of robustly selecting the parameters of the power system stabilizers is studied. A new neural-like P systems optimization algorithm is proposed in order to optimize the power system stabilizer parameters. First, the structure of the neural-like P systems is established. Then, the operation rules, including forgetting rule, spiking rule, evolving rule, and transferring rule, are designed. Furthermore, a new objective function is constructed on the eigenvalues and damping ratio. Finally, the proposed algorithm is tested on the 16-machine and 68-bus system. The simulation results show the effectiveness and robustness of the proposed methods to select the optimal power system stabilizer parameters for damping out the low f oscillation.

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A Wide-Area Dynamic Damping Controller Based on Robust <italic>H</italic>∞ Control for Wide-Area Power Systems With Random Delay and Packet Dropout

Cited by 63 publications

References 31 publications

Experimental Testing of a Real-Time Implementation of a PMU-Based Wide-Area Damping Control System

Experimental Testing of a Real-Time Implementation of a PMU-Based Wide-Area Damping Control System

Improving Small-Signal Stability of Power Systems With Significant Converter-Interfaced Generation

Designing of power system stabilizer based on neural-like P systems

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